磁控形状记忆合金多场耦合仿真分析与模型预测  

Simulation analysis and model prediction of MSMA multi field coupling

作　　者：涂福泉[1] 李根 沈林鹏 胡升谋 李恒 刘谋泽 Tu Fuquan;Li Gen;Shen Linpeng;Hu Shengmou;Li Heng;Liu Mouze(College of Machinery and Automation,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学机械自动化学院,武汉430081

出　　处：《现代制造工程》2018年第12期17-23,共7页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51274155);湖北省自然科学基金项目(2015CFA114)

摘　　要：磁控形状记忆合金(MSMA)固有的磁滞非线性特性严重影响了MSMA驱动器定位精度,以Ni2MnGa磁控形状记忆合金为研究对象,利用MSMA多场耦合系统进行实验,控制实验温度和磁场强度,记录外加应力、温度、磁场强度及MSMA应变等实验数据。在Ansys Maxwell软件中进行MSMA驱动装置模型磁路的电磁场仿真,得到最佳的耦合磁场强度。结合实验数据,运用能量守恒定律和热力学理论,构建MSMA多场耦合模型,预测了多场耦合变量曲线,得到MSMA驱动器工作的最佳耦合条件,为MSMA驱动器高精度定位提供了理论依据。The inherent hysteresis nonlinearity of MSMA influences MSMA drive positioning accuracy to Ni2MnGa magnetic shape memory alloy as the research object,multi field coupling system using MSMA control experiment,experimental temperature and magnetic field strength,stress,temperature,and record the magnetic field and the experimental data of MSMA strain.The electromagnetic field simulation of the MSMA drive device model magnetic circuit is carried out at Ansys Maxwell,and the optimum coupling magnetic field strength is obtained.According to the experimental data,using the law of conservation of energy and the thermodynamics theory,construct multi field coupling model MSMA,prediction of multi field coupling variable curve,the best cou- pling conditions of MSMA actuator,and provides a theoretical basis for the high precision positioning MSMA drive.

关 键 词：磁控形状记忆合金 多场耦合模型 实验与仿真 驱动器 精度定位 

分 类 号：TH142.2[一般工业技术—材料科学与工程]